SonoTrax Basic A Fetal Doppler

SonoTrax Basic A Fetal Doppler
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Portable fetal heartbeat Doppler by Edan Instruments with 2 mhz head and backlit display. Suitable for obstetrics and gynecological use.

SonoTrax Basic A Fetal Doppler is an easy-to-use device that allows mothers and healthcare professionals to monitor fetal heart rate (FHR).

SonoTrax Basic A Fetal Doppler is suitable for obstetric & gynecological use, has an ergonomic design, and is extremely light-weighted.

It is a high-performance doppler with a digitally illuminated LCD screen, which displays the heart rate (FHR) accurately and with high-quality sound. The fetal pulse-Doppler accurately detects the fetal heartbeat and the audio output can be connected to headphones or recorders.

SonoTrax Basic A Fetal Doppler turns off automatically for greater safety and energy savings, and includes a low battery indicator, alerting the user.

Also, a 2MHz waterproof fetal pulse head & a modern carrying case are included.


  • Illuminated heart rate display (FHR)
  • Accurate heart rate (FHR) detection with clear sound
  • Automatic and manual FHR counting.
  • Probe automatic frequency detection screen
  • With 2MHz head
  • Accepts 2MHZ, 3MHZ, 4MHZ, 8MHZ heads
  • Continuous use for a long time (about 8 hours)
  • Automatic shutdown: 1 minute after no signal or operation
  • Display: 45 mm x 25 mm backlight LCD.
  • With 9V alkaline battery
  • With carrying case
  • Low battery indicator
  • Dimensions: 34 mm × 89 mm × 141 mm
  • Weight <300kg (including battery)
  • Probe weight: 100gr
  • Cable length: 2.5m
  • Probe size: 88mm (diameter) x 35mm (thickness)
  • Audio output power: 0.5W
  • White lighting: Adjustable brightness ON, OFF

For work environment:

  • Temperature: + 5 ° C ~ + 40 ° C (+41 ºF ~ +104 ºF)
  • Humidity: 25% ~ 80% (without condensation)
  • Atmospheric pressure: 860hPa ~ 1060hPa

For transport and storage:

  •  Temperature: -20 ° C ~ + 55 ° C (-4ºF ~ +131 ºF)
  •  Humidity: 25% ~ 93% (without condensation)
  • Atmospheric pressure: 700hPa ~ 1060hPa

For heart rate (FHR):

  • FHR measurement range: 50bpm ~ 210bpm
  • Resolution: 1bpm
  • Accuracy: ± 3bpm

For recording and playback:

  • Audio sampling frequency: 4KHz
  • Recording length: 240s

The package includes:

  • 2 MHz probes for fetal monitoring
  • Headphone output
  • Carrying bag
  • Ultrasound gel
  • 9V alkaline battery
10 cm
5 cm
30 cm
0.50 kg
Data sheet
Fetal doppler

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